Yes, the web and annotation parsing code all lives in Wildfly, rather than Undertow. In the near future we should be releasing a cut down version of Wildfly which basically just contains Undertow, that will allow you to deploy war files directly. At some point we may also provide some glue code for Undertow to do this parsing so it can deploy war files directly, however it is not a high priority (although if you wanted to have a go at this most of the code already exists, in the JBoss Metadata and Wildfly code base). Stuart Robert Nikander wrote: